package com.xjj.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.toolkit.support.SFunction;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.xjj.dto.SetmealDto;
import com.xjj.entity.DishFlavor;
import com.xjj.entity.Setmeal;
import com.xjj.entity.SetmealDish;
import com.xjj.mapper.SetmealMapper;
import com.xjj.service.SetmealDishService;
import com.xjj.service.SetmealService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.bind.annotation.RequestParam;

import java.util.List;
import java.util.stream.Collectors;

@Slf4j
@Service
public class SetmealServiceImpl extends ServiceImpl<SetmealMapper,Setmeal> implements SetmealService {
        @Autowired
        private SetmealDishService setmealDishService;

    /**
     * 新增套餐，同时需要保存套餐和菜品的关联关系
     * @param setmealDto
     */
    @Transactional
    public void saveWithDish(SetmealDto setmealDto) {
        //保存套餐的基本信息，操作setmeal，执行insert操作
        this.save(setmealDto);

        List<SetmealDish> setmealDishes = setmealDto.getSetmealDishes();
        setmealDishes.stream().map((item) -> {
            item.setSetmealId(setmealDto.getId());
            return item;
        }).collect(Collectors.toList());

        //保存套餐和菜品的关联信息，操作setmeal_dish,执行insert操作
        setmealDishService.saveBatch(setmealDishes);
    }

    @Transactional
    public void removeWithDish( List<Long> ids) {
        this.removeByIds(ids);
        LambdaQueryWrapper<SetmealDish> setmealDishLambdaQueryWrapper = new LambdaQueryWrapper<>();
        setmealDishLambdaQueryWrapper.in(SetmealDish::getSetmealId,ids);
        setmealDishService.remove(setmealDishLambdaQueryWrapper);


    }

    @Transactional
    public SetmealDto getByIdWithDish(Long id) {
        Setmeal setmeal = this.getById(id);
        SetmealDto setmealDto = new SetmealDto();
        BeanUtils.copyProperties(setmeal,setmealDto);

        LambdaQueryWrapper<SetmealDish> setmealDishLambdaQueryWrapper = new LambdaQueryWrapper<>();
        setmealDishLambdaQueryWrapper.eq(SetmealDish::getSetmealId,setmeal.getId());

        List<SetmealDish> dishes = setmealDishService.list(setmealDishLambdaQueryWrapper);
        setmealDto.setSetmealDishes(dishes);


        return setmealDto;
    }

    @Transactional
    public void updateWithDish(SetmealDto setmealDto) {
        this.updateById(setmealDto);

        LambdaQueryWrapper<SetmealDish> setmealDishLambdaQueryWrapper = new LambdaQueryWrapper<>();
        setmealDishLambdaQueryWrapper.eq(SetmealDish::getSetmealId,setmealDto.getId());

        setmealDishService.remove(setmealDishLambdaQueryWrapper);

        List<SetmealDish> setmealDishes = setmealDto.getSetmealDishes();
        setmealDishes.stream().map((item) -> {
            item.setSetmealId(setmealDto.getId());
            return item;
        }).collect(Collectors.toList());

        //保存套餐和菜品的关联信息，操作setmeal_dish,执行insert操作
        setmealDishService.saveBatch(setmealDishes);

    }


}
